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CVE-2025-62593 (GCVE-0-2025-62593)

Vulnerability from cvelistv5 – Published: 2025-11-26 22:28 – Updated: 2026-08-18 03:55
VLAI CISA Previdian
Title
Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
Summary
Ray is an AI compute engine. Prior to version 2.52.0, developers working with Ray as a development tool can be exploited via a critical RCE vulnerability exploitable via Firefox and Safari. This vulnerability is due to an insufficient guard against browser-based attacks, as the current defense uses the User-Agent header starting with the string "Mozilla" as a defense mechanism. This defense is insufficient as the fetch specification allows the User-Agent header to be modified. Combined with a DNS rebinding attack against the browser, and this vulnerability is exploitable against a developer running Ray who inadvertently visits a malicious website, or is served a malicious advertisement (malvertising). This issue has been patched in version 2.52.0.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 00:00 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
Vendor Product Version CPE status
ray-project ray Affected: < 2.52.0
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 732d2b85-9238-4db1-bec9-4ea7febbf8d8

Vulnerability ID: CVE-2025-62593

Status: Confirmed

Status Updated: 2026-08-18 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-08-18
Asserted: 2026-08-18
Scope
Notes: Ray-Project Ray Code Injection Vulnerability | Affected: Ray-Project / Ray | Description: Ray-Project Ray contains a code injection vulnerability that could allow remote code execution. Developers using Ray as a development tool may be exposed to this vulnerability exploitable through Firefox and Safari. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-08-21 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v ; https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09 ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2025-62593
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-94 CWE-352
Feed CISA Known Exploited Vulnerabilities Catalog
Product Ray
Due Date 2026-08-21
Date Added 2026-08-18
Vendorproject Ray-Project
Vulnerabilityname Ray-Project Ray Code Injection Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-08-17 15:00 UTC | Updated: 2026-08-17 15:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: faa4b0c1-354d-4296-b00e-ff109226b681

Vulnerability ID: CVE-2025-62593

Status: Confirmed

Status Updated: 2026-08-18 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-08-18
Asserted: 2026-08-18
Scope
Notes: Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack | Affected: ray-project / ray | CVSS: 9.4 (CRITICAL) | EPSS: 0.00369 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Ray is vulnerable to RCE via Safari & Firefox Browsers through DNS Rebinding Attack
Vendor ray-project
Product ray
Added Date 2026-08-18T00:00:00.000Z
Cvss Score 9.4
Epss Score 0.00369
Cvss Severity CRITICAL
Epss Percentile 0.30029
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-08-17 15:00 UTC | Updated: 2026-08-17 15:00 UTC
Show details on NVD website
To clipboard 

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            "dateUpdated": "2025-11-26T22:28:28.577Z",
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            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/ray-project/ray/security/advisories/GHSA-q279-jhrf-cc6v"
            },
            {
              "name": "https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/ray-project/ray/commit/70e7c72780bdec075dba6cad1afe0832772bfe09"
            }
          ],
          "source": {
            "advisory": "GHSA-q279-jhrf-cc6v",
            "discovery": "UNKNOWN"
          },
          "title": "Ray is vulnerable to RCE via Safari \u0026 Firefox Browsers through DNS Rebinding Attack"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2025-62593",
        "datePublished": "2025-11-26T22:28:28.577Z",
        "dateReserved": "2025-10-16T19:24:37.266Z",
        "dateUpdated": "2026-08-18T03:55:33.677Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.